Magneto-electric ignition apparatus.



y A. ZHRINGER. MAGNETO ELECTRIC IGNITION APPARATUS. APPLICATION FILED MAY 4, 1908.

1,113,147. wanted oct. 6, 1914.

A. ZHRINGBR.

MAGNETO ELECTRIC IGNITION APPARATUS.

APPLICATION FILED MAY 4. 190B.

Patented Oct. 6, 1914.

3 SHEETS-SHEET 2.

\ n ,f S S /l y W MTNESSES A.. ZHRINGER. MAGNETO ELECTRIC IGNITION APIARATUS.

APPLICATION FILED MAY 4, 1998.

1,1 1 3, 147. Patented 001;. 6, 1914.

B SHEETS-SHEET 3.

I "www ARNOLD ZHRINGER, 0F

STUTTGART, GERMANY.

MAGNETO-ELECTRIC IGNITION APPARATUS.

T0 all 11i/0m it may concern l Be it known the I, 'ARNOLD ZHRINGER,l engineer, a subject of the German Emperor, residing at 13 Hoppenlaustrasse, Stuttgart,

ermany, have invented certain new and useful' Improvements in Magneto-Electric Ignition Apparatus 5 and I do hereby declare the following to be a full, clear, and exact description of the invention, suoli as will enable others skilled in the art to which it appertains to make and use the same. Y

his invention relates to apparatus for electrical ignition in internal combustion engines, and comprises certain improvements which will be described with reference to the accompanying drawings wherein- Figure 1 shows an embodiment of the complete apparatus in longitudinal section, Fig. la is a section through the distributer conductor, Fig. 2 is an elevation of the side plate, Fig. 3 a section through the lower part of this plate, Fig. el, an elevation of the distributer, Fig. 5 a part sectional plan thereof, Fig. 6 is a view of the armature cover and condenser, and Fig. 7 isa sectional elevation of a modified construction of the closing cap.

In the ignition apparatus according to the present invention, the side plate l (Figs. 1 and 2) is so formed that in spite of the projecting parts thereon it can be milled over the whole bearing surface. In the construction shown the projecting part is the bearing flange l1 for the toothed wheel 12 of the distributer. In this case the fitting surface 2, 3, 4, 5, turned toward the shoe of the magnet poles cannot be worked on the lathe, since the circle passing` through and 3 cuts the said projecting flange, -'hilo on the. other hand the centering ring (5 would prevent this surface from being milled or planed. To

permit of this milling or planing the centering ring 6 is formed as a separate piece fitted into a recess in the side plate. This ring is set in place after the surface 2, 3, 4, 5, has been finished off.

The side plate 1 has forked lugs 7 for tixing the distributer disk (Figs. 4 and 5) which are bored to receive the bolts 9 on the distributer disk. Blade springs l0 are fixed to the side plate and bear against these bolts 9 within the forks of the lugs 7, the bolts having notches or grooves in which the sprin s engage to prevent the distributer disk rom shifting backward. y

In order 'that the bearing flange for the Specification of Letters Patent. l Application led May 4, 1808.

ing sleeve 25 fa fork 27 which can be lperipheries and their f Patented oet. e, isla. serial No. 43ans.

shaft l2u of the distributer wheel 12 may be cast in one piece with the side plate, it is made to extend laterally7 therefrom and then at its extremity turned inwardly to form a front wall 11 (Fig. l) parallel and opposed to the `liront of the plate 1, the space bounded by this annular flange and its rear and front walls forming an oil chamber 1l of which the inner open side is closed by a tightly litt-ing bush 13. If the bearing 13 is to be insulatedthis bush may be surrounded with insulating material.

In the upper part of the side plate 1 there are two ciling cups 14 and 15 (Fig. 2 close together. one connected with the distributer bearing by a vertical bore 1G, while the other is connected with the bearing of the. armature shaft. by a duct 17 passing around the distributer bearing. By this arrangement the oiling ot' one ot' the bearings is not forgotten as may easily happen with arrangements hitherto usual wherein the cil-hole t'cr the armature shaft on the distributer side is ditlicult of access and cannot be inspected.

The vdistributing apparatus comprises a stationary central circular metal piece 18 (Figs. arranged equi-distant from each other four metal segments 19, 20, 21 and 22 connected with the terminals of the leads, and to which the current is transmitted by means of a rotating carbon Contact 23 insulated from the rest of the machine. The insulating disk 8 carrying the segments 1S, 19, 20, 21 and which is fixed to the side plate 1, can be so grooved between the piece 1S and ments, or the contact 23 inay be so grooved, or both may be so grooved, that the carbon is in contact only with thepiece 18 and the. segments, so that a flow of current is always insured.

From the brush holder 24 the current Hows to the distributer through a metal tube '.26 (Figs. 1 and la) surrounded by an insulatand terminating at one end as pushed home into a groove 2S in the brush holder 24. I'Vithin the tube 26 is a metal pin 30 which is pushed by a spring 29 against the metal disk 18. An etlicient Contact is thus assured.

The segmental interrupter cams 31 (Figs. 1 and 4e) are fixed by screws to the projecting cylindrically turned piece 32 which may be regarded as a part of the side plate l. 'I he cams 81 fit snugly along their outer `ont faces against the the segf tus comprising a brush holder, a stationary distributer, `a centrally arranged conductor on the said' distributer, a metal -casingz a Y groove in the/said holder :adapted to receive the said forked end, an'insulating ysheath over the said casing, a` spring within the said casing and reacting against the said casing and a rod within the said casing adapted to 'be pressed by the said spring against the central conductor.

8. In a magneto electric apparatus, a side plate carrying a projecting cylindrical eX- tension, segmental interrupter `cams secured circumferentially within the extension in xed relation thereto,` and screws fixing said cams to the extension. A

9. In a magneto electric ignition apparatus, a side plate carrying a projecting cylindrical portion, segmental interrupter cams secured circumferentially Within the cylindrical portion, the said cams fitting along one side and along their outer periphery against the inner sideof the cylindrical portion, and a single screw.arranged to hold each cam in lixed relation to the cylindrical portion.. I

10. In a. magneto electric ignition apparatus, a side plate carrying a projecting cylindrical extension, segniental interrupter cams secured circumferentially Within the extenl sion, screws passing from the outside through theextension into the cams to hold them in place and having prciecting heads, and a cap covering the open end of the cylindrical extension and provided with a circuniferential portion having an angular slot adapted to engage one of the heads of vthe Yscrews and form therewith a bayonet joint.

In testimony ivhereof" I have hereunto affixed my signature in the presence of vtwo Witnesses.

ARNOLD ZAHRINGER. `Witnesses G. ARNOLD, .s

REINHOLD ELWERT. 

